Leica GS20- Manuals

Registration Leica Geosystems GS20 Field Guide-1.1.0en 5 Registration Congratulations on your purchase of the Leica Geosystems GS20 Professional Data Mapper. To ensure premium support and service of your new GS20, please take the time to fill out and mail the attached Registration Card. * Firmware v...

Table of Contents Leica GS20 Field Guide-1.1.0en 7 Table of Contents 1. Basic Operation ............................................ 11 1.1 Batteries and Charging ............................... 11 1.1.1 Calibrating the Battery ..............................11 1.2 Powering On the Unit .................

Basic Operation Leica GS20 Field Guide-1.1.0en 11 1. Basic Operation 1.1 Batteries and Charging Leica Geosystems GEB90, 7.2 volt, 2100 mAh Lithium-Ion batteries must be used to power the Leica GS20 and WoRCS equipment. Charge only with the Leica Geosystems battery charger provided in the system.  W...

Basic Operation Leica GS20 Field Guide-1.1.0en 12 1.2 Powering On the Unit Press and release the Power Button located on lower left of the keyboard. The unit will reply with an audible tone, then proceed to a splash screen and then to the Main Menu. Remember: Although the unit can power on without t...

Basic Operation Leica GS20 Field Guide-1.1.0en 13 1.3.2 Stop and Go Indicators When a static position is located, such as a point or a node (in a line or area), the stop and go indicator is displayed as a tripod. Once the icon returns to the walkingman, the user can proceed to the next collection po...

Basic Operation Leica GS20 Field Guide-1.1.0en 14 1.4 Button Functions 1.4.1 Alpha Numeric Keys Keys 1-9 represent the alpha numeric entry keys of the GS20. Similar to a cellular phone, buttons 2-9 contain alpha characters; by pressing the key continuously, all characters on that key will be scrolle...

Basic Operation Leica GS20 Field Guide-1.1.0en 15 1.4.3 Enter and Escape Similar to standard Windows’ controls, the Enter key is used to either accept a choice or advance an action. The Escape key functions both as a back key, to escape from a current screen; as well as a backspace in edit fields. 1...

Basic Operation Leica GS20 Field Guide-1.1.0en 17 1.5 Software User Interface 1.5.1 Map Views The map view is the common interface on which all main applications are built. Data Collection, Data Management and Navigation all contain a map interface that has similar controls and are continuously upda...

Basic Operation Leica GS20 Field Guide-1.1.0en 18 1.5.2 GPS Symbol and Zoom Controls By default, an open mapping screen zooms to the full extent of data in a job; however if no data exists, the map will be centered on the GPS location (scaled to 1:20m) awaiting collected data. The map submenu contai...

Basic Operation Leica GS20 Field Guide-1.1.0en 19 1.5.4 Tables and Filtering Tables are used to display multiple attribute data that cannot be directly edited. The table can be navigated by the cursor keys (left and right being home and end) as well as the overload keys 3 Page Down and 9 Page Up . T...

Basic Operation Leica GS20 Field Guide-1.1.0en 20 1.5.5.2 Table Filters Table filters allow the user to search for data based upon the same criteria as listed above in map filters.Once a table is filtered, the user can select from the filtered table, or view the selected filters in the map view via ...

Data Collection Leica GS20 Field Guide-1.1.0en 21 2. Data Collection 2.1 Job Management When Data Collection is opened, if no job is currently selected, the user will be prompted to either “Open” an existing job or create a “New” job to continue. If a new or empty job is selected, the unit will prom...

Data Collection Leica GS20 Field Guide-1.1.0en 22 2.2 Background Files in the GS20 Often it is important for a user to see the location of they’re current position and those Features they have collected within a larger context. However, it is not always necessary or even beneficial to have that data...

Data Collection Leica GS20 Field Guide-1.1.0en 25 2.3 Code Management Because the Leica Geosystems GS20 is designed for GIS data creation and update, existing feature layer will be used as a code template for each particular job. Additional codelists can be attached to a job via Codelist Manager. In...

Data Collection Leica GS20 Field Guide-1.1.0en 26 2.3.2 Using the Codelist Manager 1. Select Tools from the Main Menu. 2. Select Codelist Manager, this is the interface you will see. Listed below are the steps for codelist creation. We will list them here, and then look at each one in depth. 2.3.3 S...

Data Collection Leica GS20 Field Guide-1.1.0en 27 2.3.3.1 Step 1: Creating a new codelist in GIS Data Pro 1. Click on Codelist and select New Codelist 2. Type in name of the New Codelist.3. Click OK. Your new codelist is now created, highlighted and ready to be populated. 2.3.3.2 Step 2: Creating Co...

Data Collection Leica GS20 Field Guide-1.1.0en 28 2.3.3.3 Step 3: Creating Attributes 1. From the Attribute pull down menu choose New Attribute 2. Fill in the attribute name and properties.3. The attribute Type can be Normal, Mandatory or Fixed 4. The attribute Value can be Text, Real or Integer 5. ...

Data Collection Leica GS20 Field Guide-1.1.0en 29 Facts About Attributes: 1. The Z attribute is reserved and cannot be changed.2. The Z attribute contains elevation data3. Maximum 256 characters per Choice List4. Attribute names must begin with a letter5. Limit the attribute names to 10 characters 2...

Data Collection Leica GS20 Field Guide-1.1.0en 30 2.4 The Codelist and Occupation 2.4.1 The Job Codelist If a job is new (i.e. does not contain any data), the user will be taken to the code table; otherwise the user is defaulted into a map view. From the mapview, you can enter features via the conte...

Data Collection Leica GS20 Field Guide-1.1.0en 32 When collecting a point offset, it is important to input the offset data before occupying the auxiliary point. • Azimuth Distance : Enter Azimuth, Distance and Delta Height before occupying the point. • Azimuth Azimuth : Enter Azimuth and Delta Ht fo...

Data Collection Leica GS20 Field Guide-1.1.0en 33 2.4.5 Modes of Collection When a line or area feature is selected, the attribution screen will display the current mode of collection (i.e. stream or node.) The last selected mode becomes the default by being stored in the user’s recent value file. F...

Data Management Leica GS20 Field Guide-1.1.0en 35 3. Data Management 3.1 Philosophy of Feature Selection Data Management selection options and context menus behave differently depending on what data has been selected. Once a feature is selected, the user must 5 Deselect via the context menu in order...

Data Management Leica GS20 Field Guide-1.1.0en 36 3.1.3 Options with a Node Selected When a node is selected on a feature, the user can select another node common to the feature graphically in the map, view the coordinates or re-occupy the node via 1 Geography , or use the 2 Node submenu to: 1. Prog...

Data Management Leica GS20 Field Guide-1.1.0en 37 3.2.1.1 Table Filtering As previously discussed in chapter 1.5.4 "Tables and Filtering", Table Filtering provides a way to search based on:• Code (Feature Name)• Feature Type (i.e. Point, Line or Area)• Code/Feature Name (using wildcards)• Ra...

Data Management Leica GS20 Field Guide-1.1.0en 40 Appending a Line or Area by Streaming 1. To append a line or area by streaming select the last node of the line and insert 2 After . 2. In the attribution/collection screen, change the collection mode to stream and occupy as you would with a normal c...

Data Management Leica GS20 Field Guide-1.1.0en 41 3.3.2 Flow of use (Sharing a common node between blocks) Select a Feature, and then select a node. If the feature is a point object, you can copy the feature or the node. 1. Open Data Collection2. Open Data Management, select a feature, and then sele...

Data Management Leica GS20 Field Guide-1.1.0en 42 6. Select More from the menu choices, and Paste the node from the clipboard. 7. Repeat as necessary. 3.3.3 Creating Point Topology Points features can be linked to other points or nodes by taking advantage of the paste functionality in the Point offs...

Navigation Leica GS20 Field Guide-1.1.0en 43 4. Navigation The navigation application is purely a means to guide the user to a point with known coordinate values. The points to be navigated are known in the GPS world as “Waypoints,” from their origin as destinations along the way. The user also has ...

Navigation Leica GS20 Field Guide-1.1.0en 44 4.1 The Navigation Screen The navigation screen is framed to provide the map display along with active navigational controls and text. The framed control panel contains a directional guidance arrow, and text fields providing: 1. Azimuth to the Waypoint.2....

Navigation Leica GS20 Field Guide-1.1.0en 45 4.2 Waypoint Selection and Management Similar to Data Management, the Navigation context menu changes depending on whether data is selected.When features or nodes have not been selected, the context menu provides the user with access to: 1. Waypoint Manag...

Navigation Leica GS20 Field Guide-1.1.0en 46 4.4 Updating a Navigated Feature Once a Waypoint has successfully been reached, a feature or node can be updated by: 1. Select Menu and choose 2 Copy to Clipboard. 2. If Data Management is currently open, Page to the Data Management application. Otherwise...

Job Management Leica GS20 Field Guide-1.1.0en 47 5. Job Management The Job Management application is where jobs are created, selected, deselected, deleted, and modified. 1. Creation of a job is performed by selecting Menu and 1 New . 2. Selection and deselection of existing jobs is toggled using the...

Job Management Leica GS20 Field Guide-1.1.0en 48 5.1 Coordinate Systems 5.1.1 Introduction Although the GS20 stores all GPS data in a WGS84 geographic coordinate format, it is possible to translate your data into a local datum, projection, or coordinate system. A pre-defined coordinate system is usu...

Job Management Leica GS20 Field Guide-1.1.0en 49 5.1.2 Overview When creating a job, it is possible to attach a pre-defined coordinate system, as well as interpolation files for non-linear transformations, and calculations of elevation above mean sea level. It is also possible to re-project a job in...

Job Management Leica GS20 Field Guide-1.1.0en 50 5.1.4 Field File Geoid Field File The field file is a subset of the global interpolation file in order to reduce the overall memory taken on the hardware.In this example, the GEOID99 was reduced to a field file called LA to serve the Los Angeles Area....

Codelist Management Leica GS20 Field Guide-1.1.0en 53 6. Codelist Management The Codelist Management application is also used to create, select, deselect, delete, and modify codelists. New Codelists, Codes, and Attributes can only be created in the Codelist Manger (i.e. not in the Data Collection co...

Codelist Management Leica GS20 Field Guide-1.1.0en 54 6.2 Creating a New Code 1. Highlight an existing Codelist, select Menu, and choose 6 Code Management . 2. Select Menu and 1 New Code . 3. Edit the Code Name, otherwise a default name will be provided. 4. Select the Code Type (i.e. Point, Line, or...

Applications Leica GS20 Field Guide-1.1.0en 55 7. Applications 7.1 Cultivated Field Control 7.1.1 Introduction CFC or Cultivated Field Control is a GS20 application aimed at providing an accurate record of crop quantities and tolerance in accordance with European Union CAP subsidies. A user can coll...

Applications Leica GS20 Field Guide-1.1.0en 56 All identifiers are listed below: Case 00: // new lineCase 01: // @Case 05: // Active Job-nameCase 06: // Current DateCase 07: // Current TimeCase 09: // Number of excluded areasCase 10: // Area Size [m²]Case 11: // Area Accuracy [m²]Case 12: // Perimet...

Applications Leica GS20 Field Guide-1.1.0en 58 An area can be selected from the table by highlighting the area and pressing enter.An area may also be selected by copying it to the clipboard from a map or table display in Data Management or Navigation. Areas internal to the main feature, or parent ar...

Utilities Leica GS20 Field Guide-1.1.0en 61 8. Utilities 8.1 File Browser The File Browser is the Leica Geosystems GS20 equivalent of Windows’ File Explorer. The file browser provides the ability to view the directory and file structure of the compact flash and system memory. Other functions of the ...

Utilities Leica GS20 Field Guide-1.1.0en 62 8.1.3 Firmware Update When new firmware (or software) is available for the Leica Geosystems GS20, the update will normally be provided on compact flash media. If however the file is delivered in another format, (e.g. E-mail or ftp) it will need to be copie...

Setup Leica GS20 Field Guide-1.1.0en 63 9. Setup The Setup application contains both default and user defined configurations that determine how a unit operates. Three default configurations are preloaded on the Leica Geosystems GS20 to allow the user to begin data collection immediately. New configu...

Setup Leica GS20 Field Guide-1.1.0en 64 9.2 Tree Directory Navigation The tree style directory menu of Setup groups similar screens into expandable branches. Each branch of the tree can be navigated using the up and down arrows. Sub-branches of a tree are depicted by a “+” to the left of the branch;...

Setup Leica GS20 Field Guide-1.1.0en 66 9.3.4 Clearing a Selected Device 1. Expand the “Wireless” and “Bluetooth: Leica” tree branches. 2. Highlight the wireless port to be cleared and select Menu and choose Clear . 9.3.5 Real-Time Corrections with a Mobile Phone Just as real-time corrections can be...

Setup Leica GS20 Field Guide-1.1.0en 67 9.3.6 Linking with the Bluetooth The cleanest way to link to a mobile phone is using a Bluetooth Virtual Serial port. Both the Sony Ericson and Siemens S56 have proven to work well with the GS20. Although Bluetooth is a consortium standard, Bluetooth devices d...

Setup Leica GS20 Field Guide-1.1.0en 69 More Status If your station connects, you will receive a link under the Arrow: Still Hollow.If your corrections are good you should receive a solid arrow, and an indication in the status bar.If your corrections are processed with the GPS, your positional Icon ...

Setup Leica GS20 Field Guide-1.1.0en 70 9.5 Device Manager The Device Manager provides a library of all devices available for Real-Time, Offset, and ASCII Input. The Device Manager allows for existing devices to be modified as well as New Devices to be created. 9.5.1 Creating a New Device 1. From th...

Setup Leica GS20 Field Guide-1.1.0en 71 • The DOP , or Dilution of Precision Filter is user definable mask based on satellite geometry. This is a setting normally used for autonomous (i.e. correctionless) collection. 9.6.2 Minimum Satellites The Minimum Satellite control allows the user to define ho...

Setup Leica GS20 Field Guide-1.1.0en 72 9.6.5 Initialization The time and initial position controls help the unit to obtain satellites faster in a new geographic location or when there is no almanac data present on the unit.Time/Date and position controls can be edited by selecting 8. Setup, 2. Hard...

Setup Leica GS20 Field Guide-1.1.0en 73 3. CQ Warning (Coordinate Quality): Even if Point Autostop is set to none, a notification alarm can be set to alert the user that the defined quality has been exceeded. Line Quality 1. Defines the horizontal quality tolerance for linear streaming. Tip: The Lin...

Setup Leica GS20 Field Guide-1.1.0en 74 Port : Three ports are currently available for connection to a Real-Time device. • Port 1: Serial Lemo connection on the bottom of the GS20• WoRCS 1: The 5 pin Lemo Port located on the bottom of the WoRCS Bluetooth Hub. • WoRCS 2: The 8 pin Lemo Port located o...

Setup Leica GS20 Field Guide-1.1.0en 75 9.8.2.2 Static Phase Static Phase collection is optimized for high accuracy single point occupations, which require that each ambiguity resolution be a separate calculation. In order to optimize this collection, moving or kinematic chain data is not logged and...

Setup Leica GS20 Field Guide-1.1.0en 77 9.8.3 WAAS and EGNOS The Wide Area Augmentation System, or WAAS is a free real-time correction for GPS available in North America, and is comparable to the European EGNOS correction, currently in a testing phase. These corrections are broadcast on the same fre...

Setup Leica GS20 Field Guide-1.1.0en 79 9.8.3.2 Changes to the Real-Time Screen A new Source selection allows the user to select none (no correction), WAAS, RTCM (Including Real-time Beacon, and Real-time Satellite), Leica and Trimble CMR.If the RTCM, Leica or Trimble CMR source is selected, you mus...

Setup Leica GS20 Field Guide-1.1.0en 80 9.8.4.1 Powering on the WoRCS 1. The Bluetooth Module is the only belt item with configurable controls. By Default, Power should be set to On, and Line should be set to Bluetooth. 2. Follow the procedure listed previously for charging the batteries. Once the b...

Setup Leica GS20 Field Guide-1.1.0en 81 8. Finally, press the Menu key and Save, then Escape back to the main menu. Tip: Ensure batteries are charged and correctly inserted. Ensure bluetooth module is set to line and on. The single flashing red light indicates that power is available. When the light...

Setup Leica GS20 Field Guide-1.1.0en 83 WoRCS Belt 1. WoRCS Power Supply Module2. WoRCS RTB Module3. WoRCS BLUETOOTH Module4. WoRCS Belt with Belt keepers5. WoRCS Power Supply Jacked6. WoRCS RTB Module Jacked7. WoRCS BLUETOOTH Module Jacked8. Power Supply to BLUETOOTH Module Cable 9.8.5.1 Powering o...

Setup Leica GS20 Field Guide-1.1.0en 85 9.8.5.3 Checking the WoRCS Real-Time Link Once the Bluetooth Link is established, you will need to make sure that your real-time device is linked and active. If the status message “Reference Data is Available” appears, setup is complete, and there is no need t...

Setup Leica GS20 Field Guide-1.1.0en 86 7. Escape and save the values, then escape and save the configuration. ) If you are editing a default configuration, you will be prompted to provide a configuration name. 8. Escape to the main menu, and return to the status/ Interface/Real-time branch to check...

Setup Leica GS20 Field Guide-1.1.0en 87 ) Not all Lemo connections are wired the same!Consult your vendor and rangefinder manual to ensure your cable is correct! ) If using a DB9 cable interface, it may be necessary to use a null modem.A null modem switches the 2 and 3 pin of a serial interface. Onc...

Setup Leica GS20 Field Guide-1.1.0en 88 4. Escape and save changes. Once you have the device and port settings set to match the offset device and port connection you are using, you will be ready to collect data. 9.8.6.2 Overview of the basic methodologies of point offset data collection. When collec...

Setup Leica GS20 Field Guide-1.1.0en 89 Distance Distance: Enter Distance and Delta Ht for 1st position from Aux Pt A; repeat for position B and choose the solution method (i.e. Left or Right) ) Because two solutions exist for a double distance intersections, the user must tell the software on what ...

Setup Leica GS20 Field Guide-1.1.0en 90 3. If your rangefinder only calculates a distance, you must manually enter the other parameters. 4. Select Occupy, similar to normal point collection. Both manual and auto-stop work in offset occupation. ) Although a default Auxiliary or base point is created ...

Setup Leica GS20 Field Guide-1.1.0en 91 The known feature is automatically selected from the Geo-Clipboard in the offset screen. No Occupation is necessary. ) By Calculating the Back. Azimuth Dist. Offset without populating the fields (i.e. zero), it is possible to create new features with a shared ...

Setup Leica GS20 Field Guide-1.1.0en 92 9.9 Units and Formats Units and Formats allow the Leica Geosystems GS20 to be entered and display according to the users specifications. 9.9.1 Units of Measure A list of choice controls defining• Length• Area• Velocity• Angle Units• Angle Formats (And Point of...

Glossary Leica GS20 Field Guide-1.1.0en 95 11. Glossary Almanac Library of coarse satellite orbital data used to calculate satellite position, rise time, elevation, and azimuth. ASCII American Standard Code for Information Interchange, developed through the American National Standards Institute. ASC...

Glossary Leica GS20 Field Guide-1.1.0en 96 Dilution of precision (DOP ) A description of the purely geometrical contribution of the uncertainty in a position fix. Ellipsoid A mathematical figure formed by revolving an ellipse about its minor axis, used in geodesy to best fit the shape of the earth. ...

Glossary Leica GS20 Field Guide-1.1.0en 97 Longitude Longitude is the angle between the meridian ellipse which passes through Greenwich and the meridian ellipse containing the point in question. Mask Angle The minimum elevation angle below which no more GPS satellites are tracked by the receiver. Ma...

Glossary Leica GS20 Field Guide-1.1.0en 98 RTCM Radio Technicial Comission for Maritime services. Commission set up to define differential data link to relay GPS messages from a monitor station to a field user. Selective Availability Degradation of GPS point positioning accuracy for civilian users b...

Leica Geosystems AG CH-9435 Heerbrugg (Switzerland) Phone +41 71 727 31 31 Fax +41 71 727 46 73 www.leica-geosystems.com Leica Geosystems AG, Heerbrugg, Switzerland, has been certified as being equipped with a quality system which meets the International Standards of Quality Management and Quality S...

Registration Leica Geosystems GS20 Field Guide-1.1.0en 5 Registration Congratulations on your purchase of the Leica Geosystems GS20 Professional Data Mapper. To ensure premium support and service of your new GS20, please take the time to fill out and mail the attached Registration Card. * Firmware v...

Table of Contents Leica GS20 Field Guide-1.1.0en 7 Table of Contents 1. Basic Operation ............................................ 11 1.1 Batteries and Charging ............................... 11 1.1.1 Calibrating the Battery ..............................11 1.2 Powering On the Unit .................

Basic Operation Leica GS20 Field Guide-1.1.0en 11 1. Basic Operation 1.1 Batteries and Charging Leica Geosystems GEB90, 7.2 volt, 2100 mAh Lithium-Ion batteries must be used to power the Leica GS20 and WoRCS equipment. Charge only with the Leica Geosystems battery charger provided in the system.  W...

Basic Operation Leica GS20 Field Guide-1.1.0en 12 1.2 Powering On the Unit Press and release the Power Button located on lower left of the keyboard. The unit will reply with an audible tone, then proceed to a splash screen and then to the Main Menu. Remember: Although the unit can power on without t...

Basic Operation Leica GS20 Field Guide-1.1.0en 13 1.3.2 Stop and Go Indicators When a static position is located, such as a point or a node (in a line or area), the stop and go indicator is displayed as a tripod. Once the icon returns to the walkingman, the user can proceed to the next collection po...

Basic Operation Leica GS20 Field Guide-1.1.0en 14 1.4 Button Functions 1.4.1 Alpha Numeric Keys Keys 1-9 represent the alpha numeric entry keys of the GS20. Similar to a cellular phone, buttons 2-9 contain alpha characters; by pressing the key continuously, all characters on that key will be scrolle...

Basic Operation Leica GS20 Field Guide-1.1.0en 15 1.4.3 Enter and Escape Similar to standard Windows’ controls, the Enter key is used to either accept a choice or advance an action. The Escape key functions both as a back key, to escape from a current screen; as well as a backspace in edit fields. 1...

Basic Operation Leica GS20 Field Guide-1.1.0en 17 1.5 Software User Interface 1.5.1 Map Views The map view is the common interface on which all main applications are built. Data Collection, Data Management and Navigation all contain a map interface that has similar controls and are continuously upda...

Basic Operation Leica GS20 Field Guide-1.1.0en 18 1.5.2 GPS Symbol and Zoom Controls By default, an open mapping screen zooms to the full extent of data in a job; however if no data exists, the map will be centered on the GPS location (scaled to 1:20m) awaiting collected data. The map submenu contai...

Basic Operation Leica GS20 Field Guide-1.1.0en 19 1.5.4 Tables and Filtering Tables are used to display multiple attribute data that cannot be directly edited. The table can be navigated by the cursor keys (left and right being home and end) as well as the overload keys 3 Page Down and 9 Page Up . T...

Basic Operation Leica GS20 Field Guide-1.1.0en 20 1.5.5.2 Table Filters Table filters allow the user to search for data based upon the same criteria as listed above in map filters.Once a table is filtered, the user can select from the filtered table, or view the selected filters in the map view via ...

Data Collection Leica GS20 Field Guide-1.1.0en 21 2. Data Collection 2.1 Job Management When Data Collection is opened, if no job is currently selected, the user will be prompted to either “Open” an existing job or create a “New” job to continue. If a new or empty job is selected, the unit will prom...

Data Collection Leica GS20 Field Guide-1.1.0en 22 2.2 Background Files in the GS20 Often it is important for a user to see the location of they’re current position and those Features they have collected within a larger context. However, it is not always necessary or even beneficial to have that data...

Data Collection Leica GS20 Field Guide-1.1.0en 25 2.3 Code Management Because the Leica Geosystems GS20 is designed for GIS data creation and update, existing feature layer will be used as a code template for each particular job. Additional codelists can be attached to a job via Codelist Manager. In...

Data Collection Leica GS20 Field Guide-1.1.0en 26 2.3.2 Using the Codelist Manager 1. Select Tools from the Main Menu. 2. Select Codelist Manager, this is the interface you will see. Listed below are the steps for codelist creation. We will list them here, and then look at each one in depth. 2.3.3 S...

Data Collection Leica GS20 Field Guide-1.1.0en 27 2.3.3.1 Step 1: Creating a new codelist in GIS Data Pro 1. Click on Codelist and select New Codelist 2. Type in name of the New Codelist.3. Click OK. Your new codelist is now created, highlighted and ready to be populated. 2.3.3.2 Step 2: Creating Co...

Data Collection Leica GS20 Field Guide-1.1.0en 28 2.3.3.3 Step 3: Creating Attributes 1. From the Attribute pull down menu choose New Attribute 2. Fill in the attribute name and properties.3. The attribute Type can be Normal, Mandatory or Fixed 4. The attribute Value can be Text, Real or Integer 5. ...

Data Collection Leica GS20 Field Guide-1.1.0en 29 Facts About Attributes: 1. The Z attribute is reserved and cannot be changed.2. The Z attribute contains elevation data3. Maximum 256 characters per Choice List4. Attribute names must begin with a letter5. Limit the attribute names to 10 characters 2...

Data Collection Leica GS20 Field Guide-1.1.0en 30 2.4 The Codelist and Occupation 2.4.1 The Job Codelist If a job is new (i.e. does not contain any data), the user will be taken to the code table; otherwise the user is defaulted into a map view. From the mapview, you can enter features via the conte...

Data Collection Leica GS20 Field Guide-1.1.0en 32 When collecting a point offset, it is important to input the offset data before occupying the auxiliary point. • Azimuth Distance : Enter Azimuth, Distance and Delta Height before occupying the point. • Azimuth Azimuth : Enter Azimuth and Delta Ht fo...

Data Collection Leica GS20 Field Guide-1.1.0en 33 2.4.5 Modes of Collection When a line or area feature is selected, the attribution screen will display the current mode of collection (i.e. stream or node.) The last selected mode becomes the default by being stored in the user’s recent value file. F...

Data Management Leica GS20 Field Guide-1.1.0en 35 3. Data Management 3.1 Philosophy of Feature Selection Data Management selection options and context menus behave differently depending on what data has been selected. Once a feature is selected, the user must 5 Deselect via the context menu in order...

Data Management Leica GS20 Field Guide-1.1.0en 36 3.1.3 Options with a Node Selected When a node is selected on a feature, the user can select another node common to the feature graphically in the map, view the coordinates or re-occupy the node via 1 Geography , or use the 2 Node submenu to: 1. Prog...

Data Management Leica GS20 Field Guide-1.1.0en 37 3.2.1.1 Table Filtering As previously discussed in chapter 1.5.4 "Tables and Filtering", Table Filtering provides a way to search based on:• Code (Feature Name)• Feature Type (i.e. Point, Line or Area)• Code/Feature Name (using wildcards)• Ra...

Data Management Leica GS20 Field Guide-1.1.0en 40 Appending a Line or Area by Streaming 1. To append a line or area by streaming select the last node of the line and insert 2 After . 2. In the attribution/collection screen, change the collection mode to stream and occupy as you would with a normal c...

Data Management Leica GS20 Field Guide-1.1.0en 41 3.3.2 Flow of use (Sharing a common node between blocks) Select a Feature, and then select a node. If the feature is a point object, you can copy the feature or the node. 1. Open Data Collection2. Open Data Management, select a feature, and then sele...

Data Management Leica GS20 Field Guide-1.1.0en 42 6. Select More from the menu choices, and Paste the node from the clipboard. 7. Repeat as necessary. 3.3.3 Creating Point Topology Points features can be linked to other points or nodes by taking advantage of the paste functionality in the Point offs...

Navigation Leica GS20 Field Guide-1.1.0en 43 4. Navigation The navigation application is purely a means to guide the user to a point with known coordinate values. The points to be navigated are known in the GPS world as “Waypoints,” from their origin as destinations along the way. The user also has ...

Navigation Leica GS20 Field Guide-1.1.0en 44 4.1 The Navigation Screen The navigation screen is framed to provide the map display along with active navigational controls and text. The framed control panel contains a directional guidance arrow, and text fields providing: 1. Azimuth to the Waypoint.2....

Navigation Leica GS20 Field Guide-1.1.0en 45 4.2 Waypoint Selection and Management Similar to Data Management, the Navigation context menu changes depending on whether data is selected.When features or nodes have not been selected, the context menu provides the user with access to: 1. Waypoint Manag...

Navigation Leica GS20 Field Guide-1.1.0en 46 4.4 Updating a Navigated Feature Once a Waypoint has successfully been reached, a feature or node can be updated by: 1. Select Menu and choose 2 Copy to Clipboard. 2. If Data Management is currently open, Page to the Data Management application. Otherwise...

Job Management Leica GS20 Field Guide-1.1.0en 47 5. Job Management The Job Management application is where jobs are created, selected, deselected, deleted, and modified. 1. Creation of a job is performed by selecting Menu and 1 New . 2. Selection and deselection of existing jobs is toggled using the...

Job Management Leica GS20 Field Guide-1.1.0en 48 5.1 Coordinate Systems 5.1.1 Introduction Although the GS20 stores all GPS data in a WGS84 geographic coordinate format, it is possible to translate your data into a local datum, projection, or coordinate system. A pre-defined coordinate system is usu...

Job Management Leica GS20 Field Guide-1.1.0en 49 5.1.2 Overview When creating a job, it is possible to attach a pre-defined coordinate system, as well as interpolation files for non-linear transformations, and calculations of elevation above mean sea level. It is also possible to re-project a job in...

Job Management Leica GS20 Field Guide-1.1.0en 50 5.1.4 Field File Geoid Field File The field file is a subset of the global interpolation file in order to reduce the overall memory taken on the hardware.In this example, the GEOID99 was reduced to a field file called LA to serve the Los Angeles Area....

Codelist Management Leica GS20 Field Guide-1.1.0en 53 6. Codelist Management The Codelist Management application is also used to create, select, deselect, delete, and modify codelists. New Codelists, Codes, and Attributes can only be created in the Codelist Manger (i.e. not in the Data Collection co...

Codelist Management Leica GS20 Field Guide-1.1.0en 54 6.2 Creating a New Code 1. Highlight an existing Codelist, select Menu, and choose 6 Code Management . 2. Select Menu and 1 New Code . 3. Edit the Code Name, otherwise a default name will be provided. 4. Select the Code Type (i.e. Point, Line, or...

Applications Leica GS20 Field Guide-1.1.0en 55 7. Applications 7.1 Cultivated Field Control 7.1.1 Introduction CFC or Cultivated Field Control is a GS20 application aimed at providing an accurate record of crop quantities and tolerance in accordance with European Union CAP subsidies. A user can coll...

Applications Leica GS20 Field Guide-1.1.0en 56 All identifiers are listed below: Case 00: // new lineCase 01: // @Case 05: // Active Job-nameCase 06: // Current DateCase 07: // Current TimeCase 09: // Number of excluded areasCase 10: // Area Size [m²]Case 11: // Area Accuracy [m²]Case 12: // Perimet...

Applications Leica GS20 Field Guide-1.1.0en 58 An area can be selected from the table by highlighting the area and pressing enter.An area may also be selected by copying it to the clipboard from a map or table display in Data Management or Navigation. Areas internal to the main feature, or parent ar...

Utilities Leica GS20 Field Guide-1.1.0en 61 8. Utilities 8.1 File Browser The File Browser is the Leica Geosystems GS20 equivalent of Windows’ File Explorer. The file browser provides the ability to view the directory and file structure of the compact flash and system memory. Other functions of the ...

Utilities Leica GS20 Field Guide-1.1.0en 62 8.1.3 Firmware Update When new firmware (or software) is available for the Leica Geosystems GS20, the update will normally be provided on compact flash media. If however the file is delivered in another format, (e.g. E-mail or ftp) it will need to be copie...

Setup Leica GS20 Field Guide-1.1.0en 63 9. Setup The Setup application contains both default and user defined configurations that determine how a unit operates. Three default configurations are preloaded on the Leica Geosystems GS20 to allow the user to begin data collection immediately. New configu...

Setup Leica GS20 Field Guide-1.1.0en 64 9.2 Tree Directory Navigation The tree style directory menu of Setup groups similar screens into expandable branches. Each branch of the tree can be navigated using the up and down arrows. Sub-branches of a tree are depicted by a “+” to the left of the branch;...

Setup Leica GS20 Field Guide-1.1.0en 66 9.3.4 Clearing a Selected Device 1. Expand the “Wireless” and “Bluetooth: Leica” tree branches. 2. Highlight the wireless port to be cleared and select Menu and choose Clear . 9.3.5 Real-Time Corrections with a Mobile Phone Just as real-time corrections can be...

Setup Leica GS20 Field Guide-1.1.0en 67 9.3.6 Linking with the Bluetooth The cleanest way to link to a mobile phone is using a Bluetooth Virtual Serial port. Both the Sony Ericson and Siemens S56 have proven to work well with the GS20. Although Bluetooth is a consortium standard, Bluetooth devices d...

Setup Leica GS20 Field Guide-1.1.0en 69 More Status If your station connects, you will receive a link under the Arrow: Still Hollow.If your corrections are good you should receive a solid arrow, and an indication in the status bar.If your corrections are processed with the GPS, your positional Icon ...

Setup Leica GS20 Field Guide-1.1.0en 70 9.5 Device Manager The Device Manager provides a library of all devices available for Real-Time, Offset, and ASCII Input. The Device Manager allows for existing devices to be modified as well as New Devices to be created. 9.5.1 Creating a New Device 1. From th...

Setup Leica GS20 Field Guide-1.1.0en 71 • The DOP , or Dilution of Precision Filter is user definable mask based on satellite geometry. This is a setting normally used for autonomous (i.e. correctionless) collection. 9.6.2 Minimum Satellites The Minimum Satellite control allows the user to define ho...

Setup Leica GS20 Field Guide-1.1.0en 72 9.6.5 Initialization The time and initial position controls help the unit to obtain satellites faster in a new geographic location or when there is no almanac data present on the unit.Time/Date and position controls can be edited by selecting 8. Setup, 2. Hard...

Setup Leica GS20 Field Guide-1.1.0en 73 3. CQ Warning (Coordinate Quality): Even if Point Autostop is set to none, a notification alarm can be set to alert the user that the defined quality has been exceeded. Line Quality 1. Defines the horizontal quality tolerance for linear streaming. Tip: The Lin...

Setup Leica GS20 Field Guide-1.1.0en 74 Port : Three ports are currently available for connection to a Real-Time device. • Port 1: Serial Lemo connection on the bottom of the GS20• WoRCS 1: The 5 pin Lemo Port located on the bottom of the WoRCS Bluetooth Hub. • WoRCS 2: The 8 pin Lemo Port located o...

Setup Leica GS20 Field Guide-1.1.0en 75 9.8.2.2 Static Phase Static Phase collection is optimized for high accuracy single point occupations, which require that each ambiguity resolution be a separate calculation. In order to optimize this collection, moving or kinematic chain data is not logged and...

Setup Leica GS20 Field Guide-1.1.0en 77 9.8.3 WAAS and EGNOS The Wide Area Augmentation System, or WAAS is a free real-time correction for GPS available in North America, and is comparable to the European EGNOS correction, currently in a testing phase. These corrections are broadcast on the same fre...

Setup Leica GS20 Field Guide-1.1.0en 79 9.8.3.2 Changes to the Real-Time Screen A new Source selection allows the user to select none (no correction), WAAS, RTCM (Including Real-time Beacon, and Real-time Satellite), Leica and Trimble CMR.If the RTCM, Leica or Trimble CMR source is selected, you mus...

Setup Leica GS20 Field Guide-1.1.0en 80 9.8.4.1 Powering on the WoRCS 1. The Bluetooth Module is the only belt item with configurable controls. By Default, Power should be set to On, and Line should be set to Bluetooth. 2. Follow the procedure listed previously for charging the batteries. Once the b...

Setup Leica GS20 Field Guide-1.1.0en 81 8. Finally, press the Menu key and Save, then Escape back to the main menu. Tip: Ensure batteries are charged and correctly inserted. Ensure bluetooth module is set to line and on. The single flashing red light indicates that power is available. When the light...

Setup Leica GS20 Field Guide-1.1.0en 83 WoRCS Belt 1. WoRCS Power Supply Module2. WoRCS RTB Module3. WoRCS BLUETOOTH Module4. WoRCS Belt with Belt keepers5. WoRCS Power Supply Jacked6. WoRCS RTB Module Jacked7. WoRCS BLUETOOTH Module Jacked8. Power Supply to BLUETOOTH Module Cable 9.8.5.1 Powering o...

Setup Leica GS20 Field Guide-1.1.0en 85 9.8.5.3 Checking the WoRCS Real-Time Link Once the Bluetooth Link is established, you will need to make sure that your real-time device is linked and active. If the status message “Reference Data is Available” appears, setup is complete, and there is no need t...

Setup Leica GS20 Field Guide-1.1.0en 86 7. Escape and save the values, then escape and save the configuration. ) If you are editing a default configuration, you will be prompted to provide a configuration name. 8. Escape to the main menu, and return to the status/ Interface/Real-time branch to check...

Setup Leica GS20 Field Guide-1.1.0en 87 ) Not all Lemo connections are wired the same!Consult your vendor and rangefinder manual to ensure your cable is correct! ) If using a DB9 cable interface, it may be necessary to use a null modem.A null modem switches the 2 and 3 pin of a serial interface. Onc...

Setup Leica GS20 Field Guide-1.1.0en 88 4. Escape and save changes. Once you have the device and port settings set to match the offset device and port connection you are using, you will be ready to collect data. 9.8.6.2 Overview of the basic methodologies of point offset data collection. When collec...

Setup Leica GS20 Field Guide-1.1.0en 89 Distance Distance: Enter Distance and Delta Ht for 1st position from Aux Pt A; repeat for position B and choose the solution method (i.e. Left or Right) ) Because two solutions exist for a double distance intersections, the user must tell the software on what ...

Setup Leica GS20 Field Guide-1.1.0en 90 3. If your rangefinder only calculates a distance, you must manually enter the other parameters. 4. Select Occupy, similar to normal point collection. Both manual and auto-stop work in offset occupation. ) Although a default Auxiliary or base point is created ...

Setup Leica GS20 Field Guide-1.1.0en 91 The known feature is automatically selected from the Geo-Clipboard in the offset screen. No Occupation is necessary. ) By Calculating the Back. Azimuth Dist. Offset without populating the fields (i.e. zero), it is possible to create new features with a shared ...

Setup Leica GS20 Field Guide-1.1.0en 92 9.9 Units and Formats Units and Formats allow the Leica Geosystems GS20 to be entered and display according to the users specifications. 9.9.1 Units of Measure A list of choice controls defining• Length• Area• Velocity• Angle Units• Angle Formats (And Point of...

Glossary Leica GS20 Field Guide-1.1.0en 95 11. Glossary Almanac Library of coarse satellite orbital data used to calculate satellite position, rise time, elevation, and azimuth. ASCII American Standard Code for Information Interchange, developed through the American National Standards Institute. ASC...

Glossary Leica GS20 Field Guide-1.1.0en 96 Dilution of precision (DOP ) A description of the purely geometrical contribution of the uncertainty in a position fix. Ellipsoid A mathematical figure formed by revolving an ellipse about its minor axis, used in geodesy to best fit the shape of the earth. ...

Glossary Leica GS20 Field Guide-1.1.0en 97 Longitude Longitude is the angle between the meridian ellipse which passes through Greenwich and the meridian ellipse containing the point in question. Mask Angle The minimum elevation angle below which no more GPS satellites are tracked by the receiver. Ma...

Glossary Leica GS20 Field Guide-1.1.0en 98 RTCM Radio Technicial Comission for Maritime services. Commission set up to define differential data link to relay GPS messages from a monitor station to a field user. Selective Availability Degradation of GPS point positioning accuracy for civilian users b...

Leica Geosystems AG CH-9435 Heerbrugg (Switzerland) Phone +41 71 727 31 31 Fax +41 71 727 46 73 www.leica-geosystems.com Leica Geosystems AG, Heerbrugg, Switzerland, has been certified as being equipped with a quality system which meets the International Standards of Quality Management and Quality S...